Understanding (a+b)2

1. Input value for a

• Click in input field. Type in a (whole) number between 1 and 10 and hit Enter.
(Patience - the first time it takes it a little time.)

a =

2. Input value for b

• Click in input field. Type in a (whole) number between 1 and 10 and hit Enter.

b =

3. What is your result when you use the formula?

• Click in each field, type in number.

a2+2ab+b2 = + +  = 

• Then, click on Check Answer.



For Better Viewing

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• Use move tool move. (Click and drag big point in lower left corner of image.)

• Click on reset tool reset to start over.

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      LFS           http://mathcasts.org/mtwiki        See also: Algebra with Geogebra       Created with GeoGebra